Homemade Erecting Prism Diagonal for DIY Refractor Telescope
Erecting Prism Diagonal a great accessory for daytime terrestrial viewing with your telescope.
Did you know that most telescopes work well for daytime viewing as well as for astronomy? If you have a refractor or a catadioptric telescope, and you would like to use it for terrestrial observations, the most useful additional accessory you can build it by my hand very cheap and easy with old binocular broken.
This 1.25” diagonal produces right side up and left-to-right correct images when used with refractors telescopes.
Inserts into 1.25” focusers or visual backs. Accepts standard 1.25” eyepieces.